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Data Sheet No. PD60260
IRS2108/IRS21084(S)PbF
Features
HALF-BRIDGE DRIVER
Packages
8-Lead PDIP 14-Lead PDIP
• Floating channel designed for bootstrap operation • Fully operational to +600 V • Tolerant to negative transient voltage, dV/dt • • • • • • • • • • •
immune Gate drive supply range from 10 V to 20 V Undervoltage lockout for both channels 3.3 V, 5 V, and 15 V input logic compatible Cross-conduction prevention logic Matched propagation delay for both channels High-side output in phase with HIN input Low-side output out of phase with LIN input Logic and power ground +/- 5 V offset Internal 540 ns deadtime, and programmable up to 5 µs with one external RDT resistor (IRS21084) Lower di/dt gate driver for better noise immunity RoHS compliant
8-Lead SOIC
14-Lead SOIC
Feature Comparison The IRS2108/IRS21084 are high voltCrossage, high speed power MOSFET and Deadtime ton/toff Input conduction Part Ground Pins IGBT drivers with dependent high- and logic prevention (ns) (ns) logic low-side referenced output channels. 2106/2301 COM HIN/LIN no none 220/200 Proprietary HVIC and latch immune 21064 VSS/COM 2108 Internal 540 COM CMOS technologies enable ruggedized HIN/LIN yes 220/200 Programmable 540 - 5000 21084 VSS/COM monolithic construction. The logic input 2109/2302 Internal 540 COM IN/SD yes 750/200 is compatible with standard CMOS or Programmable 540 - 5000 21094 VSS/COM LSTTL output, down to 3.3 V logic. The yes 160/140 HIN/LIN Internal 100 2304 COM output drivers feature a high pulse current buffer stage designed for minimum driver cross-conduction. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high-side configuration which operates up to 600 V.
Description
Typical Connection
VCC
up to 600 V
VCC
HIN LIN
VB HO VS LO
up to 600 V
TO LOAD
HIN LIN COM
IRS2108
VCC HIN LIN VCC HIN LIN DT VSS RDT VSS
IRS21084
HO VB VS TO LOAD
(Refer to Lead Assignments for correct pin configuration). These diagrams show electrical connections only. Please refer to our Application Notes and DesignTips for proper circuit board layout.
COM LO
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IRS2108/IRS21084(S)PbF
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions.
Symbol
VB VS VHO VCC VLO DT VIN VSS dVS/dt
Definition
High-side floating absolute v oltage High-side floating supply offset voltage High-side floating output voltage Low-side and logic fixed supply voltage Low-side output voltage Programmable deadtime pin voltage (IRS21084 only) Logic input voltage (HIN & LIN ) Logic ground (IRS21084 only ) Allowable offset supply voltage transient (8 lead PDIP) (8 lead SOIC) (14 lead PDIP) (14 lead SOIC) (8 lead PDIP) (8 lead SOIC) (14 lead PDIP) (14 lead SOIC)
Min.
-0.3 VB - 25 VS - 0.3 -0.3 -0.3 V SS - 0.3 VSS - 0.3 VCC - 25 — — — — — — — — — — -50 —
Max.
625 VB + 0.3 VB + 0.3 25 VCC + 0.3 VCC + 0.3 VCC + 0.3 VCC + 0.3 50 1.0 0.625 1.6 1.0 125 200 75 120 150 150 300
Units
V
V/ns
PD
Package power dissipation @ TA ≤ +25 oC
W
RthJA
Thermal resistance, junction to ambient
°C/W
TJ TS TL
Junction temperature Storage temperature Lead temperature (soldering, 10 seconds)
°C
Recommended Operating Conditions
The input/output logic timing diagram is shown in Fig. 1. For proper operation the device should be used within the recommended conditions. The VS and VSS offset rating are tested with all supplies biased at a 15 V differential.
Symbol
VB VS VHO VCC VLO
Definition
High-side floating supply absolute voltage High-side floating supply offset voltage High-side floating output voltage Low-side and logic fixed supply voltage Low-side output voltage
Min.
VS + 10 Note 1 VS 10 0 COM VSS
Max.
VS + 20 600 VB 20 VCC VCC VCC
Units
V IRS2108 VIN Logic input voltage IRS21084 DT Programmable deadtime pin voltage (IRS21084 only) VS VCC VSS Logic ground (IRS21084 only ) -5 5 TA Ambient temperature -40 125 °C Note 1: Logic operational for VS of -5 V to +600 V. Logic state held for VS of -5 V to -VBS. (Please refer to the Design Tip DT97-3 for more details).
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IRS2108/IRS21084(S)PbF
Dynamic Electrical Characteristics
VBIAS (VCC, VBS) = 15 V, VSS = COM, CL = 1000 pF, TA = 25 °C, DT = VSS unless otherwise specified.
Symbol
ton toff MT tr tf DT MDT
Definition
Turn-on propagation delay Turn-off propagation delay Delay matching | ton - toff | Turn-on rise time Turn-off fall time Deadtime: LO turn-off to HO turn-on(DTLO-HO) & HO turn-off to LO turn-on (DTHO-LO) Deadtime matching = | DTLO-HO - DTHO-LO |
Min.
— — — — — 400 4 — —
Typ.
220 200 0 100 35 540 5 0 0
Max. Units Test Conditions
300 280 30 220 80 680 6 60 600 µs ns ns VS = 0 V RDT= 0 Ω RDT = 200 kΩ (IR21084) RDT=0 Ω RDT= 200 kΩ (IR21084) VS = 0 V VS = 0 V or 600 V
Static Electrical Characte.